METHOD OF PRODUCING FIRE-RESISTANT POLYURETHANE FOAM WITH GOOD LASTING OPERATIONAL PROPERTIES Russian patent published in 2015 - IPC C08G18/08 C08G18/40 C08J9/00 C09K21/12 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing fire-resistant polyurethane foam. The method of producing fire-resistant polyurethane foam is carried out using a component A, consisting of A1 100 pts.wt of one or more filler-containing polyether poplyols (A1.1), wherein the filler is a reaction product of di- or polyisocyanate with a compound containing hydrogen atoms that are reactive with respect to isocyanates, or a mixture of A1.1 containing polyether polyol filler, wherein the filler is a reaction product of di- or polyisocyanate with a compound containing hydrogen atoms that are reactive with respect to isocyanates, and A1.1 other compounds containing hydrogen atoms that are reactive with respect to isocyanates, with molecular weight of 400-18000; A2 0-10 pts.wt (with respect to component A1) of compounds containing hydrogen atoms that are reactive with respect to isocyanates, with molecular weight of 62-399; A3 0.5-25 pts.wt (with respect to component A1) of water and/or a physical blowing agent; A4 1-9 pts.wt (with respect to component A1) of red phosphorus; A5 0-15 pts.wt (with respect to component A1) auxiliary substances and additives such as a) catalysts, b) surfactant additives, c) one or more additives selected from a group consisting of a reaction inhibitor, a pore regulator, pigments, dyes, different from component A4 of the fire-resistant agent, anti-ageing and anti-atmospheric stabilisers, a plasticiser, fungistatically and bacteriostatically active substances, filling agents and a lubricant, and a component B consisting of di- or polyisocyanates, wherein ammonium polyphosphate and malamine are not used and production is carried out with a characteristic number of 50-250. Also disclosed is polyurethane foam obtained according to the method disclosed in claim 1.

EFFECT: obtaining foam materials which satisfy the British Standard 5852, part 5.

8 cl, 2 tbl, 9 ex